From 6415e2841980be9d72c80b959d12bc42521755f2 Mon Sep 17 00:00:00 2001
From: water <672684719@qq.com>
Date: Tue, 25 Aug 2026 17:49:34 +0800
Subject: [PATCH] fix: restore Log4j2Plugins.dat in apm-toolkit-log4j-2.x

Since 9.5.0 the released apm-toolkit-log4j-2.x jar no longer contains META-INF/org/apache/logging/log4j/core/config/plugins/Log4j2Plugins.dat. Root cause: the root pom declares annotationProcessorPaths (Lombok only), which makes javac stop discovering annotation processors from the compile classpath. Log4j2's PluginProcessor from the provided log4j-core dependency never runs, so %traceId and %sw_ctx silently break.

Declare the compiler plugin in this module with annotationProcessorPaths including both Lombok and log4j-core.
---
 .../apm-toolkit-log4j-2.x/pom.xml             | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml b/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml
index 8c53d53868..69ac75ceba 100644
--- a/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml
+++ b/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml
@@ -39,4 +39,34 @@
             <scope>provided</scope>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <!--
+                      When annotationProcessorPaths is declared explicitly,
+                      javac stops discovering processors from the classpath.
+                      log4j-core's PluginProcessor (which generates
+                      Log4j2Plugins.dat) must be listed here explicitly,
+                      otherwise %traceId / %sw_ctx resolve to built-in patterns.
+                    -->
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                            <version>${lombok.version}</version>
+                        </path>
+                        <path>
+                            <groupId>org.apache.logging.log4j</groupId>
+                            <artifactId>log4j-core</artifactId>
+                            <version>${log4j-core.version}</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>